1.
Find (
x
- 4)
2
.
A.
x
2
- 4
x
+ 16
B.
x
2
- 16
C.
x
2
+ 16
D.
x
2
- 8
x
+ 16
Hint
2.
Find (
x
– 3)(
x
+ 3).
A.
x
2
- 6
x
- 9
B.
x
2
- 9
C.
x
2
+ 9
D.
x
2
- 6
x
+ 9
Hint
3.
The length of one side of a square is
x
+ 4. What is the area?
A.
x
2
+ 4
x
+ 16
B.
x
2
+ 8
x
+ 16
C.
2
x
+ 8
D.
x
2
+ 8
x
+ 8
Hint
4.
Which of the following is a difference of two squares?
A.
x
2
+ 6x + 9
B.
x
2
– 8
x
– 16
C.
x
2
+ 36
D.
x
2
– 9
Hint
5.
Find the product (3
k
2
– 2
k
)
2
.
A.
9
k
4
– 6
k
3
– 4
k
2
B.
9
k
4
– 12
k
3
– 4
k
2
C.
9
k
4
– 12
k
3
+ 4
k
2
D.
9
k
4
– 6
k
3
+ 4
k
2
Hint